Mapping with confidence; delineating seagrass habitats using Unoccupied Aerial Systems (UAS).
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Nahirnick, Natasha K.
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There is growing interest in the use of Unoccupied Aerial Systems (UAS) for mapping and monitoring of seagrass habitats. UAS provide flexibility with timing of imagery capture, are relatively inexpensive, and obtain very high spatial resolution imagery compared to imagery acquired from sensors mounted on satellite or piloted aircraft. However, research to date has focused on UAS applications for exposed intertidal areas or clear tropical waters. In contrast, submerged seagrass meadows in temperate regions are subject to high cloud cover and water column turbidity, which may limit the application of UAS imagery for coastal habitat mapping. To test the constraints on UAS seagrass mapping, we examined the effects of five environmental conditions at the time of UAS image acquisition (sun angle, tidal height, cloud cover, Secchi depth and wind speed) and five site characteristics (eelgrass patchiness and density, presence and density of non‐eelgrass submerged aquatic vegetation, sediment to.....
JournalRemote Sensing in Ecology and Conservation
Sustainable Development Goals (SDG)14.2
Essential Ocean Variables (EOV)Seagrass Cover and composition
Maturity LevelTRL 8 Actual system completed and "mission qualified" through test and demonstration in an operational environment (ground or space)
Best Practice TypeBest Practice
Spatial CoverageBritish Columbia waters
CitationNahirnick, N. K.; Reshitnyk, L. ; Campbell, M. ; Hessing‐Lewis, M. ; Costa, M. ; Yakimishyn, J. and Lee, L. (2019) Mapping with confidence; delineating seagrass habitats using Unoccupied Aerial Systems (UAS). Remote Sensing in Ecoloy and Conservation, 5, pp.121-135. DOI:10.1002/rse2.98
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